Comparison of CMOS and Adiabatic Full Adder Circuits

Full adders are important components in applications such as Digital Signal Processors (DSP) architectures and microprocessors. Apart from the basic addition adders also used in performing useful operations such as subtraction, multiplication, division, address calculation, etc. In most of these systems the adder lies in the critical path that determines the overall performance of the system. In this paper, the authors propose that conventional Complementary Metal Oxide Semiconductor (CMOS) and adiabatic adder circuits are analyzed in terms of power and transistor count in 0.18um technology.